Why the output of some topic delays with IDEs?

edit

I wrote small code to see the time of the output for "/move_base/status" topic.

This is my code:

#!/usr/bin/env python
import rospy
from actionlib_msgs.msg import GoalStatusArray

def callback(data):
    print(data.status_list[0].status)
def listener():
    rospy.init_node('listener', anonymous=True)
    rospy.Subscriber("/move_base/status", GoalStatusArray, callback)

    rate = rospy.Rate(50)
    while not rospy.is_shutdown():

        rate.sleep()

if __name__ == '__main__':
    listener()

At the same time, I run the topic in the terminal $ rostopic echo /move_base/status here it was fast

I observed around 6 sec delay with pycharm compared to the terminal.

Is there a scientific explanation for this?